In a small bowl, whisk together cake flour, baking soda, and salt. Set aside.

.In a separate bowl, cream together shortening and sugar for 1-2 minutes

Add eggs and vanilla and beat for another 1-2 minutes, until it’s a pale yellow color

Fold the flour mixture into the egg and sugar mixture so that you have a stiff, crumbly dough.

Use your hands to work the ground walnuts into the dough, and then form it into a log, about 15 inches long.

Wrap the log in plastic wrap and chill for at least one hour.

After the dough has chilled, preheat the oven to 350 degrees and grease two cookie sheets.

Cut the dough into ½ inch slices and lay them out on the cookie sheets, leaving at least 1.5 inches between each piece.

Bake for 10-15 minutes. Cool them on the pan for 5 minutes, then transfer to a wire cooling rack until they’re completely cool

Add a tablespoon of chocolate frosting to the center of each cooled cookie